IUPAC:methyl 13-[11'-(acetyloxy)-4-(2-chloroethyl)-12'-ethyl-5'-methoxy-8'-methyl-3,5-dioxo-8',16'-diazaspiro[1,4-oxazolidine-2,10'-pentacyclo[10.6.1.0^{1,9}.0^{2,7}.0^{16,19}]nonadecane]-2',4',6',13'-tetraen-4'-yl]-17-ethyl-17-hydroxy-1,11-diazatetracyclo[13.3.1.0^{4,12}.0^{5,10}]nonadeca-4(12),5,7,9-tetraene-13-carboxylate
IUPAC:methyl 13-[11'-(acetyloxy)-4-(2-chloroethyl)-12'-ethyl-5'-methoxy-8'-methyl-3,5-dioxo-8',16'-diazaspiro[1,4-oxazolidine-2,10'-pentacyclo[10.6.1.0^{1,9}.0^{2,7}.0^{16,19}]nonadecane]-2',4',6',13'-tetraen-4'-yl]-17-ethyl-17-hydroxy-1,11-diazatetracyclo[13.3.1.0^{4,12}.0^{5,10}]nonadeca-4(12),5,7,9-tetraene-13-carboxylate